This paper outlines some of the problems of designing friction pile groups and refers to experiments carried out by the Building Research Station to provide data that will assist designers. Early model studies showed that the settlement of friction pile groups connected by a rigid cap could be many times greater than that of a single pile. The tests also showed that the distribution of load between the piles of such a group depended largely on the spacing of the piles. In recent field investigations the behaviour of small pile groups has been examined in greater detail. Measurements of the variation in load along each pile shaft and of the associated soil displacements have been made. The main features of these tests are described and some results are presented to show how the behaviour of a two-pile group can be predicted from observations made in a test of a single pile. The installation of load cells in the foundations of permanent structures is also discussed briefly.

  • Corporate Authors:

    Building Research Establishment

    Bucknalls Lane, Gorston
    Watford WD2 7JR, Hertfordshire,   England 
  • Authors:
    • Cooke, R W
  • Publication Date: 1974-2

Media Info

  • Features: Figures; References;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00260648
  • Record Type: Publication
  • Report/Paper Numbers: CP24/74
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM